package com.itheima.reggine.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggine.common.R;
import com.itheima.reggine.dto.DishDto;
import com.itheima.reggine.entity.Category;
import com.itheima.reggine.entity.Dish;
import com.itheima.reggine.entity.DishFlavor;
import com.itheima.reggine.service.CategoryService;
import com.itheima.reggine.service.DishFlavorService;
import com.itheima.reggine.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * Created by IntelliJ IDEA.
 *
 * @Author : Runqiang Jiang
 * @create 2022/4/19 21:43
 */
@RequestMapping("/dish")
@RestController
@Slf4j
public class DishController {
    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private DishService dishService;
    @Autowired
    private CategoryService categoryService;
    /**
     * 新增菜品
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){
        //前端回传的json数据需要RequestBody反序列化到我们定义的实体对象中
        log.info(dishDto.toString());
        dishService.saveWithFlavor(dishDto);
        return R.success("新增菜品成功");
    }
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        // 构造分页构造器对象
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage=new Page<>();

        // 条件构造器
        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        // 添加过滤条件
        queryWrapper.like(name!=null,Dish::getName,name);
        // 添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);
        // 执行分页查询
        Page<Dish> dishpage = dishService.page(pageInfo,queryWrapper);
        // 对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");
        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list= records.stream().map((item)->{
            DishDto dishDto=new DishDto();
            BeanUtils.copyProperties(item,dishDto);
            Long categoryId = item.getCategoryId();// 分类ID
            // 根据id查询分类对象
            Category category = categoryService.getById(categoryId);
            if(category!=null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }

            return dishDto;
        }).collect(Collectors.toList());
        dishDtoPage.setRecords(list);
        return R.success(dishDtoPage);
    }

    /**
     * 根据id查询对应的菜品信息和对应的口味信息
     * @param id
     * @return
     */
    @GetMapping("/{id}") // rest风格
    public R<DishDto> get(@PathVariable Long id){
        DishDto dishDto = dishService.getByIdWithFlavor(id);
        return R.success(dishDto);

    }

    /**
     * 修改菜品
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        dishService.updateWithFlavor(dishDto);
        return R.success("修改菜品成功");
    }

    /**
     * 根据条件查询对应的菜品数据
     * @param dish
     * @return
     */
//    @GetMapping("/list")
//    public R<List<Dish>> list(Dish dish){
//        // 构造查询条件
//        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
//        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
//        // 添加条件，查询状态为1（ 起售状态）的菜品
//        queryWrapper.eq(Dish::getStatus,1);
//        // 添加排序条件
//        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
//
//        List<Dish> list = dishService.list(queryWrapper);
//        return R.success(list);
//
//    }
    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){
        // 构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
        // 添加条件，查询状态为1（ 起售状态）的菜品
        queryWrapper.eq(Dish::getStatus,1);
        // 添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);

        List<DishDto> dishDtoList=list.stream().map((item)->{
            DishDto dishDto=new DishDto();
            BeanUtils.copyProperties(item,dishDto);
            Long categoryId = item.getCategoryId();
            // 根据id查询分类对象
            Category category = categoryService.getById(categoryId);
            if(category!=null){
                dishDto.setCategoryName(category.getName());
            }
            // 当前菜品的id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper=new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(DishFlavor::getDishId,dishId);
            //sql: select * from dish_flavor where dish_id=?
            List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper);
            dishDto.setFlavors(dishFlavorList);
            return dishDto;
        }).collect(Collectors.toList());
        return R.success(dishDtoList);

    }

}
